Showing papers by "Mitsubishi published in 1972"

Composition of novel modified filler and resin

Abstract: Filler modified plastic, rubber or thermosetting resin compositions are prepared by admixing a thermoplastic resin, thermo-setting resin or rubber with a modified filler, produced by polymerizing a free radical polymerizable or ionic polymerizable monomer, onto the surface of the filler.

Process and apparatus for triple-electrode mig welding using short-circuit and spray-arc deposition

Abstract: A triple-electrode MIG welding process for the butt welding of I-grooves in flat position which comprises arranging three electrodes at the apices of a triangle, two of the electrodes preceding with a short-arc characteristic and one following said two with a spray-arc characteristic, and causing the two preceding electrodes to weld the groove walls by fillet welding while causing the following one electrode to weld and fill up the space between the beads formed by fillet welding, so that one weld layer is formed by three passes.

Process of producing semiconductor devices

Abstract: By etching away a silicon nitride coating on a semiconductor substrate by photolithographic technique, windows of a predetermined pattern are formed in the coating to serve to deposit electrodes on and diffuse active regions into the substrate. Then a silicon dioxide coating deposited on the nitride coating and within the windows and partly removed by photolithographic technique to again form the windows for diffusion followed by the diffusion of the active regions into the substrate. An etchant chiefly attacking the oxide coating is used to again make all the windows for depositing the electrodes within them on the substrate.

Process for preparing an unsaturated glycol diester

Abstract: UNSATURATED GLYCOL DIESTERS ARE PREPARED AT HIGH REACTION VELOCITIES, HIGH DEGREES OF CONVERSION AND HIGH SELECTIVITY, BY REACTING A CONJUGATED DIENE, A CARBOXYLIC ACID AND OXYGEN, IN THE PRESENCE OF A SOLID CATALYST CONTAINING PALLADIUM, AT LEAST ONE ELEMENT SELECTED FROM THE GROUP CONSISTING OF ANTOMONY, BISMUTH, TELLURIUM AND SELENIUM TELLURIUM AND SELENIUM ARE PREFERRED SINCE THEY AID IN REDUCING THE QUANTITY OF PALLADIUM LOST IN THE REACTION MEDIUM

Device for removing a sludge from a surface

Abstract: A device for removing a sludge from the surface of a liquid or from a floor such as a deck of a tanker includes a shovel which is adapted to be moved along the sludge with its opened mouth positioned to receive the sludge. The construction includes a connection for directing a high velocity liquid jet into the shovel in the vicinity of the mouth to impinge upon the sludge and to break it up into a slurry and, in addition, means are provided for withdrawing the slurry upwardly through a conduit for discharge at a remote location. The discharging connection advantageously includes a liquid ejector which is operated partly by the conduit connected for supplying the high velocity jet of liquid to the shovel and which is connected to the shovel for providing a withdrawing suction or pumping action on the slurry which is formed in the shovel. In a further embodiment, the interior of the shovel is provided with a screen or grate across the shovel interior onto which the slurry is directed and against which the high velocity liquid jet is directed. The action breaks up the slurry elements into finer elements for withdrawal through the discharge conduit. A still further embodiment includes an intermediate chamber at the rear of the shovel which is adapted to receive the slurry after it is first acted upon by the high velocity jet and which includes a plurality of turning water streams which are directed in a whirling flow to cause a rotation and further pulverizing of the slurry material before it is delivered through the discharge conduit.

Synthetic papers and method of making

Abstract: Synthetic papers, endowed with good foldability as well as good paperiness, of a non-laminated structure of one thermoplastic resin film or a laminated structure of at least two thermoplastic resin films. Each of the films is stretched or molecularly oriented, and one or more of the films contain a fine inorganic filler so as to provide paperiness of the film. According to the invention, some of the films contain a certain amount of polystyrene as a foldability improving agent.

Static heat-and-moisture exchanger

Abstract: A static heat-and-moisture exchanger core comprises an enclosed shell structure having a plurality of heat-and-moisture transfer members statically disposed therein in superposed and spaced-apart relationship defining between each two adjacent members a static flow path. The shell structure has a box-shaped configuration having four side walls and contains numerous pairs of aligned openings in opposed side wall portions each pair opening into one of the flow paths. Each heat-and-moisture transfer member is composed of either Japanese paper or asbestos paper having a thickness of from 0.05 mm to 1.0 mm whereupon the laminations are heat conductive and moisture permeable to effect continuous and simultaneous heat and moisture exchange between two air streams flowing through alternate ones of the flow paths.

Method and apparatus for encasing of articles

Abstract: A method of loading cases with articles, comprises the steps of transferring the cases, each having therein a predetermined number of article-receiving compartments, along a path beneath an article path, to a discharging station through a space immediately below the terminal end of the article path, segregating the articles on the article transfer path into groups each of which consists of a predetermined number of articles arranged in regular rows and ranks, advancing the articles at a velocity synchronous with the travelling velocity of the cases such that the articles of the rows positioned on lines perpendicular to the article path are spaced apart from each other at the same intervals as are the case compartments, further guiding the articles by tilting them laterally relative to the advancing direction of the articles, and successively dropping the articles from the termination of the article path into the respective compartments in the case travelling just therebelow.

A method of producing plastic bags

Abstract: This invention relates to a method of producing plastic bags made of cylindrical film which is manufactured by the well known method called the ''''inflation method,'''' being improved and characterized in forming film in layers which are crossed in their stretched directions by using a compound die assembled with a plurality of annular dies concentrically.

Producing glass-reinforced polyolefin compositions

Abstract: A modified polyolefin obtained by adding to 100 parts by weight of a polyolefin 0.01 to 0.8 parts by weight of an unsaturated carboxylic acid or anhydride thereof having 3 to 8 carbon atoms in the molecule and 0.05 to 0.5 parts by weight of an organic peroxide and melt-mixing these components in an extruder, has an outstanding adhesion to glass fibers. A blend of such a modified polyolefin filled with glass reinforcements has excellent physical properties as well as excellent appearance. The modification of polyolefin may be effected in the presence of a glass reinforcement to achieve both modification and mixing in a single stage, resulting in a composition with superior physical properties owing to improved dispersion and least break down of the glass reinforcement.

Production of electrical conductors covered with crosslinked material

Abstract: In the production of cables covered with a cross-linked material by feeding a conductor and a cross-linkable material covering the conductor through a long land portion of an extruding die unit, the length and the operational temperature in the land portion being selected so that the cross-linking reaction is substantially completed within the land portion, and cooling the cross-linked material within a cooling device housing a pressurized cooling fluid therein, an improved process within the aforementioned feeding of the conductor is carried out under a braking force counteracting a pull generated along the cable by the pressurized cooling fluid.

Process of enhancing pilling resistance of textile materials

Abstract: Pilling resistance of textile materials containing synthetic staple fibers is enhanced by pressing the textile materials laid on an abrasive surface carrying thereon numerous fine abrasive grains with sharp edges, whereby defects are formed in the staple fibers distributed on the textile fiber surface by the sharp edges.

Reactors for highly viscous materials

Abstract: A reactor for continuous polymerization of materials to high viscosity employs a heat exchange jacketed cylindrical vessel, a concentrically mounted draught tube, four radially-extending arms rotatably mounted in the upper part of the vessel, two inner downwardly extending strips attached to two of the arms, a first helical screw fixedly attached to the inner strips, four outer downwardly extending strips, wherein the upper ends are attached to the ends of the arms and their lower ends are connected by a ring member, and a second and a third helical screw, each having its outside edge just inside the interior wall of the vessel and the inside edge just outside the outer wall of the draught tube. The second and third helical screws are fixedly attached to the four strips at each intersection of its respective helical screw with a strip. The convolutions of the third helical screw lie within the convolutions of the second helical screw.

Apparatus for controlling the speed and spacing of vehicles

Abstract: The fail-safe system for controlling separate vehicles running on a track, path or roadway permits both high vehicle speeds and high traffic densities. The system includes devices for measuring the speed of a lead vehicle and also the spacing between vehicles. A control system is provided which develops a control signal proportional to the square root of the sum of a signal proportional to the vehicle spacing and a signal proportional to the square of the lead vehicle speed. Alternatively, the control system may provide a control signal proportional to the sum of signals proportional to the lead vehicle speed and to the square root of the vehicle spacing. These control signals are used to regulate the speed and following distance of vehicles behind the lead vehicle. Various other alternative embodiments of the invention are disclosed, as are several novel features such as an emergency braking system.

Process for making structural material having a foamed inner layer

Abstract: A synthetic resin structural material comprising surface layers and an intersticed inner layer having an expansion ratio between 1.3 and 5, which are integrally bonded together through interfused layers thereof. A process for producing the above-described synthetic resin structural material, comprising introducing surface layerconstituting molten resin and an inner layer-constituting molten resin with a blowing agent blended therein into a die from separate entrances respectively, joining the flows of the respective resins within the die in such a manner that the inner layer-constituting resin flow is sandwiched by the surface layerconstituting resin flows and the resins are not mixed with each other, leading the joined resin flows towards an exit of the die while gradually cooling and hardening the surface layerconstituting resins and applying a suitable pressure to the outer surfaces of said resin flows, discharging the joined resin flows from said die, whereupon said pressure is removed allowing, the inner layer-constituting resin to foam into an intersticed structure, and then regulating the thickness of the thus formed structural material by thickness regulating members.

Process for producing insulating paper where the paper is frictionally calendered

Abstract: Polyolefin fibers containing at least 70% by weight of polypropylene fibers having a denier of at least 0.5 and a birefringence of at least 2.5 × 10 - 2 are formed into a sheet. The sheet is then frictionally calendered in the dry state at a frictional ratio of at least 15% and at a temperature in the range from 90°C to 160°C whereby an insulating paper having excellent air-impermeability and oil-resistance is obtained.

Method of producing offset printing plate

Abstract: An offset printing plate of improved printability is provided utilizing the silver complex salt diffusion transfer process by treating an offset master plate containing an image-receiving layer composed of 100 parts by weight of a physical development center and not more than 30 parts by weight of a high-molecularweight compound, with a transfer developer solution consisting essentially of a developing agent, a solvent for a silver halide, and at least one organic heterocyclic compound such as 3-pentylbenzoxazoline-2-thione, 5-phenyl-2-mercapto-1,3,4-oxadiazole or 3-mercapto-4-methyl-5-pentyl-1,2,4-triazole.

Process and an apparatus for continuously casting a sheet and the like

Abstract: A process for continuously casting a polymeric sheet and the like, comprising, running two feed belts positioned in face-to-face relationship to each other, opposed belt surfaces of said belts running in the same direction at the same speed; running at least two gaskets together with the two belt surfaces at the edges thereof; maintaining the opposed surfaces rigid in the direction transverse to the running one and flexible in the running direction; supplying material between the belts from one end thereof; supporting apart the opposed belt surfaces by pressure of the material and retaining a gap of desired thicknesses between the belt surfaces at desired positions thereof; treating continuously the material between the belt surfaces and delivering treated sheet from the other end of the belts.

Radar mounted on helicopter

Abstract: A radar antenna is fixedly disposed within a radar dome secured to a helicopter on the rotor head so as to have a maximum directive gain between selected adjacent two of blades radially extending at predetermined equal angular intervals from the rotor head. The antenna is electrically connected to a transmitter/receiver unit through a transmission line extending through a rotor shaft and a rotary joint disposed at the lower end of the shaft. In order to provide a dual antenna system or to form a combined primary and secondary radar, another antenna may be similarly provided on the helicopter but its maximum directive gain is directed between another selected pair of adjacent blades.

System for sensing collision of motor vehicles

Abstract: A collision speed sensor senses a collision speed in excess of its predetermined value to produce an output for application to a pulse generator connected to an AND gate. Then the generator generates a pulse having a predetermined fixed duration. A deceleration sensor also connected to the AND gate responds to a deceleration signal in excess of its predetermined value to produce a deceleration pulse. Only in the simultaneous presence of both pulses the gate produces a signal indicating a dangerous collision having occurred.

Process for producing casting molds using a dry flowable blended sand

Abstract: A method is described for producing a dry flowable blended sand and using this sand in making a casting mold. The blended sand is prepared by mixing a refractory particle, such as silicious sand, with an alkali metal silicate solution, such as a sodium silicate solution of at least 40 percent (weight) solids content whose SiO2 to Na2O molar ratio has previously been adjusted with NaOH solution of at least 40 percent (weight) solids content to a molar ratio of 0.7 to 1.1 to thereby precipitate and deposit crystalline alkali metal silicate on the surface of said refractory particle, and thereafter blending the thus treated refractory particle with a powder of silicon, silicon alloy such as ferrosilicon, silicide such as calcium silicide or a mixture thereof, pouring the blended sand into a molding frame and allowing it to harden therein. The precipitation and deposition of the alkali metal silicate from solution is hastened by the addition of an alcohol such as methanol, or metal salt such as NaCl to the alkali metal silicate solution.

Electrophotographic apparatus using photosensitive member with electrically high insulating layer

Abstract: The disclosed photosensitive member comprises a supporting substrate, an electrode, a visible photoconductive layer and a thin layer of an electrically high insulating material which is transmissive to visible light, and is photoconductive in the ultraviolet range. The insulating layer is irradiated with visible light from an object to be reproduced and is simultaneously charged with a predetermined polarity through corona charging to form an electrostatic latent image corresponding to the object on the insulating layer. After the electrostatic image undeveloped or developed, has been transferred to a record medium, the electrostatic image left on the insulating layer is erased by irradiation with ultraviolet radiation.

Process for producing tetrahydrofuran

Abstract: Tetrahydrofuran is produced in high yields by hydrogenation of maleic or fumaric acid or their derivatives or gamma -butyrolactone in the presence of a catalyst which is an intimate mixture of metallic nickel with metallic cobalt and/or iron and an oxide of aluminum, boron, beryllium, magnesium, calcium, manganese, chromium, zinc, zirconium, molybdenum, thorium, tungsten, titanium, or vanadium, with or without addition of metallic copper. gamma -butyrolactone, when formed as a by-product, and unreacted starting material may be recycled, and no significant amounts of other by-products are formed at relatively low temperatures and pressures.

Antenna system with distortion compensating reflectors

Abstract: D R A W I N G AN ANTENNA SYSTEM HAS A REFLECTOR SYSTEM COMPRISING A PLURALITY OF REFLECTORS HAVING ROTATIONALLY ASYMMETRICAL CURVED SURFACES SUCH AS ELLIPTIC, HYPERBOLIC OR PARABOLIC SURFACE GEOMETRIES. IN ORDER TO COMPENSATE FOR THE ASYMMETRICAL PROPERTIES OF THE REFLECTORS, AT LEAST ONE PAIR OF ASYMMETRICAL REFLECTORS IS ARRANGED IN FACING RELATIONSHIP SO THAT THE DIFFERENCES IN ASYMMETRICAL PROPERTIES ARE COMPENSATED BY THE OPPOSITE RADIATION DISTRIBUTION CHARACTERISTICS OF EACH REFLECTOR. THE REFLECTORS ARE POSITIONED APART SO THAT AMONG THE REFLECTORS THE RATIO BETWEEN THE PRODUCT OF THE DISTANCES FROM EACH REFLECTION POINT OF EACH REFLECTOR TO THE FOCUS OF EACH REFLECTED BEAM FORMS A CONSTANT RATIO WITH THE PRODUCT OF THE DISTANCE FROM THE REFLECTION POINT TO THE FOCUS OF EACH INCIDENT BEAM. ACCORDINGLY, WHEN AN ELECTROMAGNETIC BEAM SOURCE WITH A ROTATIONALLY SYMMETRICAL BEAM, IS APPLIED, A ROTATIONALLY SYMMETRICAL RADIATION DISTRIBUTION CHARACTERISTIC RESULTS AT AN APERTURE OF THE ANTENNA SYSTEM EVEN THOUGH THE REFLECTORS HAVE ROTATIONALLY ASYMMETRICAL CURVED SURFACES.

Pressure testing apparatus for bottles

Abstract: A pressure testing apparatus for bottles, comprising a turntable for carrying bottles thereon, pressure-testing heads each supporting vertically movably a pressure-testing piston which, when lowered, moves into a bottle (a) on said turntable from the opening of said bottle and a sealing piston which, when lowered abuts against top end of the bottle to seal the bottle opening, a frame structure supporting said turntable and said pressuretesting heads, and control means for controlling the operation of each of said pressure-testing heads by compressed air in such a manner that said pressure-testing piston is lowered at first and then said sealing piston is lowered and finally said pressuretesting piston is lowered again, said bottle being previously filled with water and, when mounted on the turntable, is positioned immediately below said pressure-testing piston

Wetting liquid composition for offset master plate

Abstract: THE PRINTABILITY OF AN OFFSET MASTER PLATE CAN BE MARKEDLY IMPROVED BY USING A WETTING LIQUID COMPOSITION COMPRISING (A) AT LEAST ONE OF TRANSPARENT AND WATER INSOLUBLE FINE PARTICLES HAVING A PARTICLE SIZE OF NOT MORE THAN 0.1U SUCH AS COLLOIDAL SILICA AND ALUMINA, (B) AT LEAST ONE OF ALKALI METAL ALTS SUCH AS SULFATES, HALIDES AND NITRATES OF K AND NA, (C) AT LEAST ONE OF LOW MOLECULAR POLHYDRIC ALCOHOLS AND POLYALKYLENE OXIDES HAVING A MOLECULAR WEIGHT OF NOT MORE THAN 1000 SUCH AS POLYETHYLENE GLYCOL, PROPYLENE GLYCOL, DIETHYLENE GLYCOL AND HEXYLENE GLYCOL AND (D) AT LEAST ONE OF WEAK ORGANIC ACIDS SUCH AS CITRIC ACID, SUCCINIC ACID, TARTARIC ACID, ADIPIC ACID, ASCORBIC ACID AND PROPIONIC ACID. SAID COMPOSITION PREFERABLY HAS A PH VALUE OF ABOUT 4.0-5.6.

Apparatus for controlling vehicular speed and interspacing

Abstract: A fail-safe system, having both digital and analog embodiments, which controls the spacing and speed of vehicles traveling along a prescribed track, path or roadway. In accordance with the system, the position of a particular vehicle is detected by ground mounted elements which sense the passage of a vehicle. This information is retained in a memory until it is erased by the passing of a subsequent vehicle. In addition, information as to the position of the vehicle is transmitted back along the track over a suitable circuit network to following vehicles to regulate the speed and spacing of all vehicles running on the same track. The system also provides for high speed and low speed zones, and for junction zones between the high and low speed zones.

Stereoscopic television system

Abstract: Two fly''s eye type lens systems are disposed in back-to-back relationship with an optical diffusion plate or an optical amplifier sandwiched between the two systems, and slightly spaced away from another lens system of similar construction to form an optical image on a photosensitive surface of a pickup tube. The picture tube has optically coupled to its phosphor screen a lens system similar to the last-mentioned lens system.

Gantry mill free from the effects of thermal deformation of a bridge member

Abstract: A gantry mill free, from the effects of thermal deformation of a bridge member, comprises a pair of combinations each consisting of a base member, a bed member on which the base member can travel and which is fixed provided with a driving strip member directed in the direction of travel of the base member, and a driving device engaged with the driving strip member. A bridge member is connected between the head portions of the base members. In one combination, the base member and the driving device are fixed to each other and the bed and base members are constrained against relative lateral displacement and relative vertical displacement while being capable of relative longitudinal displacement while being capable of relative longitudinal displacement in the direction of travel. In the other combination, the base member and the driving device are constrained against relative longitudinal displacement and relative vertical displacement, but are capable of relative lateral displacement through a distance in excess of the maximum thermal deformation of the bridge member. Also, the bed member and the base member in the other combination are constrained against relative displacement in the vertical direction but are capable of relative displacement in the lateral direction through a distance in excess of the magnitude of thermal deformation of the bridge member, and are also capable of relative displacement in the travel direction, with the bed member and the driving device being constrained against relative displacement in the lateral direction. The bed members are fixedly mounted in spaced parallel relation, and the base members are conjointly movable, in fixed parallel relation, longitudinally of the bed members.